14.2 Nephron Flashcards
Process of nephron
Blood —filtration—-> filtrate (180L, blood volume 5-6 L, 40x a day)
filtrate ——reabsorbed/secretion—> urine
Types of reabsorption
Obligatory and variable
Glomerulus
Specialized fenestrated capillary in kidney (has pores)
Lined with simple squamous epithelium, capillary in the middle
brings blood into glomerulus
Afferent arteriole
Blood leaves the glomerulus through
Efferent arteriole
Fluid collects in the glomerulus where
Glomerular capsule (Bowman’s Capsule)
Bowman’s capsule is where
filtration occurs
Filtrate enters the
Series of tubules called proximal convoluted tubule
Proximal convoluted tubule brings blood
Down from the cortex into the medulla through the Loop of Henle
The loop of henle leads
Back up to the cortex, to the distal convoluted tubule by the afferent and efferent arterioles
Distal convoluted tubule is connected to
The collecting duct
The collecting duct is where
Variable reabsorption of water occurs (draws water out through osmosis)
The collecting duct becomes the
Papillary duct